All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
A woman is obligated to obey her husband in intercourse matters, as long as it is within the limits of what is known and familiar, even if she does not love him, because it is from obedience in M’aruf (goodness). However, she is not obligated to obey him in a matter that goes beyond the usual limits.
Allah knows best.